Do you mean you want the right hemi thicknesses on the left hemisphere of a given subject or on the fsaverage_sym? doug
On 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote: > Thank you, so I'm keeping the one I had. > > Sorry for my bad explanation. When I do a normal cortical thickness > study, I know the average thickness for a label, e.g. cortex, and the > values at each vertex of each hemisphere are stored in > $subject/surf/?l.thickness. I would like to know if it is possible to > obtain the same cortical thickness measure from the lh-rh registered > hemispheres of each subject. > > > Regards, > Gabriel > > > El 25/03/13, *Douglas N Greve * <gr...@nmr.mgh.harvard.edu> escribió: >> >> On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote: >> >Thanks a lot for your answer, >> > >> >I'm sending you attached the diff of the two mris_preproc. >> Those differences are just added features and won't change your results. >> > >> >When I wrote CT, I was meaning cortical thickness, as normally this >> values are in surf/?h.thickness, But how do I know the >> Xhemi-registered thickness values of each subject for lh-rh, or area >> or any of those indices? >> I'm not sure what you mean. When you run mris_preproc, you specify >> whether you want thickness, etc. >> doug >> > >> >Regards, >> >Gabriel >> > >> > >> >El 25/03/13, *Douglas N Greve * <gr...@nmr.mgh.harvard.edu> escribió: >> >> >> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: >> >>> Dear Doug, >> >>> >> >>> I've seen that you restore the files to download, for the Xhemi >> >>> registration. While I'm checking for the statistical process, I've >> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: >> >>> 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 >> >>> 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, >> >>> and the actual is newer version but seems that was created before the >> >>> one I have. My question is, Which one should I keep? >> >>Can you send me a diff of the two files? >> >>> >> >>> If I change the mris_precproc version. Shall I re-run this step >> >>> before statistical analyses, to create a new >> lh.lh-rh.thickness.sm00.mgh? >> >>> >> >>> On the other hand I have some doubts about the statistical procedure. >> >>> It's supposed that if I apply the Xhemi registration, as result the >> >>> left and right hemispheres are equals to each other on every >> subject, so: >> >>> >> >>> A) Where can I get the CT values after the Xhemi registration to >> >>> FSaverage_sym for the left and right hemispheres? >> >>what are CT values? >> >>> >> >>> >> >>> B) Given that I have two groups, Patients and Control, with two >> levels >> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female >> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that >> I can >> >>> set the contrasts and fsgd files as with a normal CT analisis, but >> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to >> contain the >> >>> left-right differences across subjects, right? >> >>> >> >>> Wich would be the right interpretation? of: >> >>The interpretation does not really change because it is a xhemi >> analysis >> >>> >> >>> 1) 5 .5 -.5 -.5 0 0 0 0 >> >>Is the L-R difference between Grp1 and Grp2 different than 0 >> (regressing >> >>out Var1 and gender) >> >>> >> >>> 2) 5 -.5 .5 -.5 0 0 0 0 >> >>Is the L-R difference between Males and Females different than 0 >> >>(regressing out Var1 and Group) >> >>> >> >>> 3) 0 0 0 0 .5 .5 -.5 -.5 >> >>Does the slope of the L-R difference with Var1 differ between Grp1 and >> >>Grp2(regressing out gender) >> >>> >> >>> 4) 0 0 0 0 5 -.5 .5 -.5 >> >>Does the slope of the L-R difference with Var1 differ between Male and >> >>Female(regressing out group) >> >>> >> >> >> >>> >> >>> >> >>> >> >>> Many thanks in advanced. >> >>> Gabriel. >> >> >> >>-- >> >>Douglas N. Greve, Ph.D. >> >>MGH-NMR Center >> >>gr...@nmr.mgh.harvard.edu >> >>Phone Number: 617-724-2358 >> >>Fax: 617-726-7422 >> >> >> >>Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> >>FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> >>Outgoing: >> ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> >> >>_______________________________________________ >> >>Freesurfer mailing list >> >>Freesurfer@nmr.mgh.harvard.edu >> >>https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> >> >> >>The information in this e-mail is intended only for the person to >> whom it is >> >>addressed. If you believe this e-mail was sent to you in error and >> the e-mail >> >>contains patient information, please contact the Partners >> Compliance HelpLine at >> >>http://www.partners.org/complianceline . If the e-mail was sent to >> you in error >> >>but does not contain patient information, please contact the sender >> and properly >> >>dispose of the e-mail. >> >> >> > >> >-- >> >-------------------------- >> >PhD. student Gabriel González-Escamilla >> >Laboratory of Functional Neuroscience >> >Department of Physiology, Anatomy, and Cell Biology >> >University Pablo de Olavide >> >Ctra. de Utrera, Km.1 >> >41013 - Seville >> >- Spain - >> > >> >Email: ggon...@upo.es >> >http://www.upo.es/neuroaging/es/ >> >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> gr...@nmr.mgh.harvard.edu >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> > > -- > -------------------------- > PhD. student Gabriel González-Escamilla > Laboratory of Functional Neuroscience > Department of Physiology, Anatomy, and Cell Biology > University Pablo de Olavide > Ctra. de Utrera, Km.1 > 41013 - Seville > - Spain - > > Email: ggon...@upo.es > http://www.upo.es/neuroaging/es/ -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
